{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "We discuss the benefits of using various plasmonic nanostructures for broad - band , polarization - insensitive and angle - independent absorption enhancement , and their integration with one or two electrode ( s ) of an OPV device ."}
{"Chemical": []}